157863932819 has 8 divisors (see below), whose sum is σ = 164743375392. Its totient is φ = 150985806400.

The previous prime is 157863932813. The next prime is 157863932851. The reversal of 157863932819 is 918239368751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157863932819 - 2¹² = 157863928723 is a prime.

It is a super-2 number, since 2×157863932819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157863932813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79904 + ... + 567549.

It is an arithmetic number, because the mean of its divisors is an integer number (20592921924).

Almost surely, 2^157863932819 is an apocalyptic number.

157863932819 is a deficient number, since it is larger than the sum of its proper divisors (6879442573).

157863932819 is a wasteful number, since it uses less digits than its factorization.

157863932819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658077.

The product of its digits is 19595520, while the sum is 62.

The spelling of 157863932819 in words is "one hundred fifty-seven billion, eight hundred sixty-three million, nine hundred thirty-two thousand, eight hundred nineteen".